Pests & Diseases

Stop snails eating your vegies, aphids infesting your roses and fruit flies swarming your citrus. Learn how to identify, and eradicate or treat, common garden invaders and plant problems. Get advice on organic and chemical control methods, plus tips on cure and prevention, for a healthy garden.

3 Easy Steps To Get Rid Of Stink Bugs
Anyone who’s had a citrus tree will be familiar with bronze orange bugs. Also called stink bugs, they produce a foul-smelling secretion and suck the sap from stalks, causing flowers and fruit to drop. These pests need to be controlled in winter befor...
How To Use Organic Pesticides
Using environmentally sustainable sprays, traps and deterrents to control insect pests and diseases is good garden practice. There are a range of safe, simple, organic remedies that target specific problems only and that are not toxic to the soil, th...
Pest Control
As winter settles in, you may find that unwelcome guests attempt to set up camp in your home, seeking food, shelter and warmth as the temperatures drop.  But you can ensure these creatures, such as rats, mice and cockroaches, don’t stay for the s...
How To Know What Weeds To Pull And What To Leave In The Garden

An international weed, water hyacinth infests aquatic systems on every continent

One of the least favourite but essential chores that must be performed regularly in the garden would have to be weeding. Because they are often attractive, easy-to-grow plants that thrive, weeds can quickly become invasive and destroy other less ri...
Eradicate Aphids

Learn how to get rid of this common garden pest. Image: Thinkstock

Aphids are small, soft-bodied insects that feed on sap and leave a sticky deposit as they suck the juice from leaves and stems. They love nasturtiums but attack everything from herbs and vegies to vines, shrubs and trees, including roses, camelli...
A flower with powdery mildew, How To Get Rid Of Powdery Mildew, Handyman Magazine,

Keep an eye out for powdery mildew when the humidity is high and the weather has been dry. Image: Getty Images 

First appearing as faint white spots on leaves, this fungus gradually forms a white dusty film over the entire surface. Thriving in times of high humidity and dry conditions when temperatures are 11 to 28°C, powdery mildew can spread to the buds,...
Plant with diseased leaves, Treat Nutrient deficiencies in plants, Handyman magazine,

Treat nutrient deficiencies and get your plants thriving again. Image: Thinkstock 

When you have followed all the rules on the label for your plant but it’s still in poor health it could have a nutrient deficiency.  These occur when the soil is lacking one or more of the nutrients the plant requires to thrive.  Deficiencies o...
Anyone who’s had a citrus tree will be familiar with bronze orange bugs. Also called stink bugs, they produce a foul-smelling secretion and suck the sap from stalks, causing flowers and fruit to drop.   These pests need to be controlled in winter be...
A hoverfly on a leaf

Hoverfly larvae feed on aphids and thrips

Organic gardening combines several complementary strategies to achieve healthy crops. These strategies consist of an array of simple gardening practices that will greatly reduce the impact of pests and diseases. And in the event that a problem does o...
A snail crawling on a leafy green

Snails and slugs love to eat leafy greens and seedlings

They eat their way through the garden under the cover of night, leaving a slimy trail to show where they’ve been. A nocturnal menace to the garden in the warm months, snails and slugs have a huge appetite for many types of plants. They love vegies, e...
Aphids on the stem of a plant

Aphid numbers can build up rapidly

Aphid infestations, which include greenfly and blackfly, can build up very quickly, so it's important to treat the problem fast and as soon as it is identified. Organic methods If you garden organically, treat with pyrethrum insecticide, or try spr...
A garden bed with flowers and vegetables

Mix flowers with vegetables for a garden that thrives

Some plants appear to have a direct effect on others growing near them. In some cases the effect is beneficial, while in others it is detrimental. Roses, for example, seem to be more sweetly scented and less prone to disease when surrounded by garlic...